I found that dynamictrees has a much higher density of trees than vanilla. Since I have betterfoliage when I walk into a forest with a high density of dynamic trees, my framerate drops significantly and I would like to add the ability to modify the density of trees.

Oh, and by the way that applies to 1.16. If you're on 1.12 it is effectively the same file but goes in the config/dynamictrees folder instead.

You can actually already do this. The trees folder in your MC directory can be populated with all the same resources as DT and add-ons add.

For changing the density you would want to override the default biome populators. I would recommend inspecting the default populator to see how the density is configured for each biome by default. Place a default.json file in the same relative directory to the trees folder and play around with the density values for each biome.

You can actually already do this. The trees folder in your MC directory can be populated with all the same resources as DT and add-ons add.

For changing the density you would want to override the default biome populators. I would recommend inspecting the default populator to see how the density is configured for each biome by default. Place a default.json file in the same relative directory to the trees folder and play around with the density values for each biome.

Thank you very much.
But I still have some questions.
Does this mean I need to modify the jar file for the mod? I am a Modpack maker and need to upload to CurseForge, so if I need to change the JAR file, CurseForge would not allow me to upload Modpack :(

No, it can all be done from the trees folder under the relevant MC directory (same directory where the config, mods, etc folders are). Any entries will override the values assigned in base DT (and any add-ons). IIRC CurseForge allows you to add additional files to exports so you should be able to include the trees folder.

No, it can all be done from the trees folder under the relevant MC directory (same directory where the config, mods, etc folders are). Any entries will override the values assigned in base DT (and any add-ons). IIRC CurseForge allows you to add additional files to exports so you should be able to include the trees folder.

Really grateful to you!